The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2011
Filed:
Jul. 05, 2006
Applicant:
Fabio Sozzani, Grenoble, FR;
Inventor:
Fabio Sozzani, Grenoble, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and a circuit for protecting a digital quantity stored in a microcontroller including a JTAG interface, including the step of making the digital quantity dependent from a value stored in non-volatile fashion in the microcontroller and made inaccessible if signals are present at the input of the JTAG interface.